What is the difference? In both cases one side is giving missiles for the explicit purpose of striking the rivals cities.
Distance is pointless when that capability only exists due to the missiles provided.
WW3 is a real threat. Imagine if Russian responds by blowing up the trains the missiles are on in Poland? Or striking a Western city in turn?
We are relying on the restraint of gangster led Russia to avoid nuclear war here ffs.
Because it never lead to missile strikes on the US.